Hoisting and loading mechanism



M. 1. REYNOLDS.

HOISTING AND LOADING MECHANISNI.

APPLICATlON FILED AUG.1, i919. 1,337,667. Patented Apr. 20, 1920.

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nesaeea 'Application lcC. August il, 1919. Serial i substantial anddurable mechanism ot this class, by the use of which a single operatorcan lift heavy and bulky articles from an elevated position or from theground and deposit them on a vehicle, suoli motor truck, wagon and thelike, second; to provide ready means whereby certain part-s ot themechanism are so elevated and extended that articles orn great bulk andweight can thereby be moved through a second storj,vv window ot abuilding and be deposited on said vehicle, third, to so construct anc`arrange the parts oli a mechanism of this class, that they can belowered and folded into a comparatively small amount of space.

l attain these obiects by the mechanism illustrated in the accompanying`drawings, in which:

Figure lis a side view of the mechanism, as it appears when in use,certain parts being broken away. Fig. 2 is a transverse section on theline X X, seen in l, loolring toward the right, certain parts beingbroken away. llig. 3 is an enlarged view in detailotthe carrier holdinghoolnloolring downward. Fig. 4 is an enlarged side View of one ot thepower transmitting,l mechanisms, the gear case cover being removed andcertain parts being` broken away.

Referring to Fig, l, the running gears l are provided with the engine 2,tor propelling said runningl gears. The two longitudinally disposedsills 3 are secured on said running: gears.

T he iloor 3 is secured on said sills. Slots 4 are formed through saidsills, in which slots the lazy tongs pivots 5 are slidably mounted.

Since all four of the sets of lazy tongs are alike in their constructionand operation, but one set is described in" detail.

@ne of said pivots is secured in the lower end portion of the lazy tongsmember 5, which member crosses member Z and is piv-Y Specication ofLetters atent.

atented Apr. .20, 1920.

otally connected with center of the latter'.

connected with cted with the lower end ot meniber o t mounted in lot l0,which is formed connected w fh said Stringer, e nds downt The lower Thecable holder 13 is secured on the rhe periphery of said cable holder isrl`he lower end o'l member is pivotally e sill 3, while its upper end issimilarly coe, the upper end of which is provided with pivot 9, whichpivot is slidably s throuoh the cap stringer ll. The upper end o he lazytongs member l2 is pivotally ward thererrom and is similarly connectedwith member S at their centers. end oi meinber 12 is similarly connectedwith the upper end of member 7,

lower end of member 7.

channeled 'for the reception of the cables leend cable ld is secured onthe rea-r sullace said cable holder, while its front end portion extendsthere in, bene th said iolder to the winding' on which the 'front endof' said secured and wound.

ar set l? oit the lazy tongs, is simiovided with the cable holder 18, on

a c ble l5 is secured. Said cable extends the therefrom beneath theholde s 18 and 13,

with the front end of said cable secured on the upper surface orn the Kof the last mentioned cable holder. A. winding drum lo" is secured oneach end of the rotatably mounted drum shaft 19, as seen in 2. The wormgear 2O (see Fig. 4,) is secured on said drum shaft.v Said gear is inengagement with the worm 2l, which is secured on the rear end of theworin shaft 22.

The rear end portion of said shaft is rota- 'te-,bly mounted in thebearing,` 23, which is oscillatabiy mounted in the gear case 24. rthe'ti-ont end nortion of said shaft is simiarlv ino-anJA n the 25, whichis slidably mounted for vertical movement in the frame 26. Gear wheel 27is secured on the 'liront end ot said shaft and is in en- Qagj f withpinion 28, which pinion is secured on the pinion shaft 29, and is drivenby the intermediate gear 30, which latter gear is in engagement with thedrive `gear 3l. Said drive gear is secured on the drive shatt 32, whichsh is rotatably mounted in said The iront end portion of said shaft.extends into 'the transmission case, in which power is transmitted fromthe c 1 rorward portion engine shaft 34 to said drive shaft, by thegears 35.

Pinion 36 is secured on shaft 32, in such position that gear 27 can belifted into en. gagement therewith.

Bearing 25 is rod connected with the lower end of the lever 37, by theconnecting rod 38, as seen in Fig. 4. rllhe lower end of said lever isl.shaped and is oscillatably mountedon the latch segment 39, in whichthe notch 40 is formed. Said lever is provided with the latch and latchrod 37, the lower end of said rod being adapted to be moved into eitherone of the notches 4l and 42, from the notch 40, for detachably holdingsaid lever in three respective positions, for controlling the rotationsof the winding drum 16. The previously described parts, for brevity,will hereafter be termed cable winding means.

Referring to flligs. l and 2, blocks secured on the cap stringere ll, onwhich blocks the ends of the tie pieces are secured. rlhe longitudinallydisposed girder 45 is secured on the centers of the under surfaces ofsaid tie pieces, with the tram rail 46 secured on its under side, theedges of which extend beyond the edges of said girder. Said girder isprovided with the girder extension 47, the front end of which is hingeconnected with the rear end of said girder by hinge 47.

The tram rail extension 48 is secured on the under surface of saidgirder extension. Said glrders and the thereby carried tram rails areraised to any desired height, and are lowered by the action of thedescribed lazy tongs, as hereinafter described.

lThe load carrier 49 is provided with ,wheels 50 which support saidcarrier and are'thereby moved along and upon the ez;- tended edgeportions of the train rail extension 48 and the tram rail 46.

@ne end of cable 5l is secured to said carrier at 52, which cable ispassed around the sling pulley 53, which is rotatably mounted. in thesling piece 53. Said sling piece secured to the load 53. Cable 51 ispassed thence around` pulley 54, which is rotatably mounted in the loadcarrier 49. Said cable 1s again passed around pulley 53, thence up wardbetween the bifurcations 55 of the hook 56, which is oscillatablymounted in said. load carrier. Said hook is provided with the helicalspring 57, which is mounted. on its shaft portion, whereby thebifurcated end' portion of said hook is yieldablv held against the hookstop 56, seen in ll" ig. 3.y Cable 51 extends from said bifurcationsover. thepulley 59 which is rotatably mounted inn the carrier 49. Saidcable extends therefrom, over the guide pulley o0, which 1s rotatablymounted on the central portion of the` tie bar 61, the ends of wl'lichare secured on the front ends of the,l cap Stringers ll. Said cableextends from said guide pulley to one side of the winding drum 62, onwhich it is wound, with its wound end secured on said drum.

@ne end of the tail cable 63 is secured to the load carrier 49, extendstherefrom around the tail pulley 64, thence forward over the guidepulley 65, (which is mounted on the central portion of the tie bar 61,)thence downward to the other side of drum 62, on which it is wound, withits wound end detachably secured on said drum.

Said tail cable draws the load carrier 49 to the rear end of the tramrail extension 48.

Drum 62 is provided with cable winding means which is controlled by thelever 66, seen in if ig. l, and since said cable winding means is thesame in construction and operation as the one previously described, itis neither shown nor described in detail.

butment 67 is secured on the rear end of girder extension 47 forstopping the load carrier 49, which is abutted thereagainst when drawnto the limit of its rearward travel.

rThe lower end of said abutment is engaged by the hoolr 56 at this time,for holding said carrier against forward travel, while a load 53 isbeing hoisted by the cable 51, from platform 70.

Button 68 is secured on said cable and is stopped against the buttonstop 69, which is secured in the load carrier 49.

ln cases whercthe stress on the cable 5l, in pulling the carrier 49along the tram rails is less than the stress of the load 53 upon saidcable, said lo'ad e gravitates slightly, thereby drawing said cablebackward until the thus drawn cable moves button 68 onto the bifurcatedend 55 of hook 56, which end is supported on stop 58, preventing furthergravitation offsaid load.

T he extension cable 71 is used at the front end of the truck forlifting the described tram rail extension to a vertical position, and atthe' back end for lowering the same therefrom to the position shown. l

The lower ends of the standards 72are secured on the sills 3, whiletheir upper ends are secured to the ends of the tiebars 73,respectively,A for guiding the cap stringere ll and preventing lateralmovement of the same.

Having fully described my invention, what l claim as new, and desire tosecure by Letters Patent, is:

l. rlhe combination with the running gears of a vehicle, such as a motortruck, a wagon and the like, of sills mounted on said vehicle; aplurality of sets of lazy tongs connected at their lower ends with saidsills; a tram rail supported by the upper ends of said lazy tongs; aload carrier transportably supported on said tram rail; lowering andraising means for said lazy tongs whereby their upper end portions arelowered and raised; hoisting means connected with said load carrierwhereby a load oli Yfreight is lifted; carrier holding means wherebysaid carrier is held against movement on said rail, while said hoistingis being accomplished; releasing means whereby said holding means isautomatically released after said load is hoisted; carrier moving meanswhereby said load carrier is moved along said rail; and hoist holdingmeans whereby said hoisting means is held against return movement.

2. The combination with a vehicle provided with an engine for propellingit; of a tram rail; a load carrier transportably supported on said tramrail; lazy tongs raising and lowering means whereby said tram rail israised and lowered; cables whereby said lazy tongs are operated; cableWinding means whereby said cables are wound on and unwound from windingdrums; disconnectible gear connections whereby said winding means isconnected with the shait of said engine; and controlling means wherebysaid gear connections are controlled; thereby controlling the movementsof said lazy tongs and the thereby supported parts.

3. The combination with a vehicle provided with an engine thereon; of atram rail supported on said vehicle; raising and lowering means wherebysaid tram rail is raised and lowered; a load carrier transportablysupported on said tram rail; a hoisting cable one end of which issecured to said carrier; load hoisting means operated by movement in onedirection of said cable; carrier holding means whereby said carrier isheld against movement on said rail while said load is being hoisted;releasing means whereby said carrier holding means is automaticallyreleased after said load is hoisted; cable holding means whereby saidcable is held for holding said load against return movement bygravitation thereof; a winding drum on which said cable is wound therebyhoisting said load and drawing said carrier along said tram rail; a tailcable one end of which is secured togsaid load carrier; guide pulleysaround which said tail cable is guided to said winding drum the guidedend of said tail cable being wound on said drum and detachably securedthereon in such manner that said tail cable is unwound from said drumwhile said hoisting cable is being wound thereon and vice versa; drumrotating means disconnectibly gear connected with the shaft oit saidengine; and gear controlling means whereby said gear connections arecontrolled thereby controlling the rotations of said drum.

ln testimony whereof l aliX my signature.

MARY JANE REYNOLDS.

